CONSERVATIVE TREATMENT OF AVASCULAR NECROSIS OF THE FEMORAL HEAD (LITERATURE REVIEW) Article Panin M.A., Boiko A.V., Abakirov M.D., Petrosyan A.S., Ananin D.A., Awad M.M. Genij Ortopedii. Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics. Vol. 28. 2022. P. 274-281